gzip: /home/ubuntu/backup-64: No space left on device
选择新的系统位置：
1.TF卡
2.USB驱动器
请输入选项: 2
正在写入设备... (/dev/sda1)
dd: failed to open '/home/ubuntu/backup-64': No such file or directory
自动调整分区 (/dev/sda1)
umount: /mnt/sda1: target is busy.
e2fsck 1.45.5 (07-Jan-2020)
/dev/sda1 is mounted.
e2fsck: Cannot continue, aborting.
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/sda1 is mounted on /mnt/sda1; on-line resizing required
old_desc_blocks = 59, new_desc_blocks = 59
The filesystem on /dev/sda1 is now 122096390 (4k) blocks long.
mount: /mnt/sda1: /dev/sda1 already mounted on /mnt/sda1.
正在写入启动文件...
64+0 records in
64+0 records out
65536 bytes (66 kB, 64 KiB) copied, 0.00408886 s, 16.0 MB/s
切换系统完成，请重启设备 (y/n):
各位大老，迁移系统时空间不足，怎么能恢复复回来，
硬盘里有这个 hi3798mv100_bootargs_emmc_backup.img
